(PHP 4, PHP 5)
odbc_field_num — Return column number
$result_id
   , string $field_name
   )Gets the number of the column slot that corresponds to the named field in the given result identifier.
result_id
     The result identifier.
field_name
     The field name.
   Returns the field number as a integer, or FALSE on error.
   Field numbering starts at 1.